> Most bivalves
> normally live buried, so ordinary conditions are often adequate to
> bury them beyong the reach of normal bioturbation.

> Finally, the evidence of myriad separate events of rapid burial,
> interspersed with abundant evidence of slow deposition or even
> erosion, in no way supports a young earth.

Hi David,

Sorry I'm a little slow to respond, but as you can see I have continued
to ponder what you said. In your post you made the point (snipped) that
articulated bivalves (e.g. clams) live buried so when they die they may
not become disarticulated. I had said that articulated bivalves were
evidence of rapid burial, not thinking that they live in the sediment.

Which raises another question that hadn't occurred to me earlier. If
bivalves and other bottom dwellers constantly bioturbate the bottom of
marine and fresh-water bodies, then why do we see layered strata
throughout the geologic column? I once read (wish I had the reference
but I don't) that a storm in the Gulf had blanketed the bottom with a
layer of sand. Two days later the sand layer had been completely
obliterated by bioturbation.

Are you saying that layered sediment, as seen throughout the geologic
record, is evidence of rapid burial - burial that was too rapid for
bioturbation to occur?

Bill

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